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Hurricane Katrina 160 140 120 100 80 60 40 20 880 900 920 940 960 980 1000 1020 Air Pressure (mbar) These questions refer to the scatter plot. a. What was the storm like (air pressure and wind speed) at the time represented by the highest point at the far left of your graph? b. What was the air pressure when the wind speed reached 100 knots? c. Use values from the graph to estimate how much the wind speed increased as the air pressure decreased by approximately 100 millibars. Wind Speed (knots)

Hurricane Katrina 160 140 120 100 80 60 40 20 880 900 920 940 960 980 1000 1020 Air Pressure (mbar) These questions refer to the scatter plot. a. What was the storm like (air pressure and wind speed) at the time represented by the highest point at the far left of your graph? b. What was the air pressure when the wind speed reached 100 knots? c. Use values from the graph to estimate how much the wind speed increased as the air pressure decreased by approximately 100 millibars. Wind Speed (knots)

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You've seen that air pressure and wind speed are related: as air pressure drops, wind speed increases. Is there a particular formula for this relationship though? For instance, for every 10 millibars decrease in air pressure, does the wind speed increase by a predictable amount? Is there a certain air pressure at which the wind speed can be expected to reach 65 knots, the characteristic that classifies a storm as a hurricane? The quantitative relationship between air pressure and wind speed can be revealed by creating a graph that compares the two variables directly. This graphing technique is called a scatter plot. Below is a scatter plot made from the same data in the graph in the previous question. Every point on the graph shows the air pressure and wind speed for a specific time during the storm. Hurricane Katrina 160 140 120 100 80 60 40 20 880 900 920 940 960 980 1000 1020 Air Pressure (mbar) These questions refer to the scatter plot. a. What was the storm like (air pressure and wind speed) at the time represented by the highest point at the far left of your graph? b. What was the air pressure when the wind speed reached 100 knots? c. Use values from the graph to estimate how much the wind speed increased as the air pressure decreased by approximately 100 millibars. Wind Speed (knots)
Transcribed Image Text:You've seen that air pressure and wind speed are related: as air pressure drops, wind speed increases. Is there a particular formula for this relationship though? For instance, for every 10 millibars decrease in air pressure, does the wind speed increase by a predictable amount? Is there a certain air pressure at which the wind speed can be expected to reach 65 knots, the characteristic that classifies a storm as a hurricane? The quantitative relationship between air pressure and wind speed can be revealed by creating a graph that compares the two variables directly. This graphing technique is called a scatter plot. Below is a scatter plot made from the same data in the graph in the previous question. Every point on the graph shows the air pressure and wind speed for a specific time during the storm. Hurricane Katrina 160 140 120 100 80 60 40 20 880 900 920 940 960 980 1000 1020 Air Pressure (mbar) These questions refer to the scatter plot. a. What was the storm like (air pressure and wind speed) at the time represented by the highest point at the far left of your graph? b. What was the air pressure when the wind speed reached 100 knots? c. Use values from the graph to estimate how much the wind speed increased as the air pressure decreased by approximately 100 millibars. Wind Speed (knots)
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